Question

plasma membranes note​

Answer 1

Answer:

The plasma membrane, also known as the cell surface membrane or plasmalemma, defines the boundary of the cell. It is a phospholipid bilayer with embedded proteins that encloses every living cell. ... It is said to be semi-permeable because it allows certain molecules but not others to enter into the cell.

Explanation:

Answer 2

Answer: The plasma membrane of a cell is a network of lipids and proteins that forms the boundary between a cell's contents and the outside of the cell. It is also simply called the cell membrane. The main function of the plasma membrane is to protect the cell from its surrounding environment.